CN108799103A - Pump assembly, fluid machinery and heat transmission equipment - Google Patents
Pump assembly, fluid machinery and heat transmission equipment Download PDFInfo
- Publication number
- CN108799103A CN108799103A CN201810791306.1A CN201810791306A CN108799103A CN 108799103 A CN108799103 A CN 108799103A CN 201810791306 A CN201810791306 A CN 201810791306A CN 108799103 A CN108799103 A CN 108799103A
- Authority
- CN
- China
- Prior art keywords
- pump assembly
- shaft
- cylinder
- hole
- lower flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/10—Stators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention provides a kind of pump assembly, fluid machinery and heat transmission equipments.Wherein, pump assembly includes：Shaft；Cylinder, shaft pass through cylinder；Lower flange is located at the lower section of cylinder, protruding portion is provided on the end face towards cylinder of lower flange, and protruding portion has the through-hole passed through for shaft.Present invention efficiently solves the shafts of pump assembly in the prior art easily to deform upon, influences the problem of pump assembly working performance.
Description
Technical field
The present invention relates to pump assembly technical fields, are set in particular to a kind of pump assembly, fluid machinery and heat exchange
It is standby.
Background technology
In the prior art, as shown in Figure 1, the short axle section 11 ' of the shaft 10 ' of pump assembly stretches into cylinder 20 ' and laxative remedy
The length H1 of orchid 30 ' is codetermined by the height of limiting plate 40 ' and lower flange 30 ', causes short axle section 11 ' longer, span is larger.
Under identical stress condition, the short axle section 11 ' for easily leading to shaft 10 ' deforms upon, and leads to short axle section 11 ' and lower flange 30 '
Between contact stress increase, easily the two contact position recurring structure wear, the working performance and structure for influencing pump assembly can
By property.
Invention content
The main purpose of the present invention is to provide a kind of pump assembly, fluid machinery and heat transmission equipments, to solve existing skill
The shaft of art middle pump body component easily deforms upon, influences the problem of pump assembly working performance.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of pump assembly, including：Shaft；Gas
Cylinder, shaft pass through cylinder；Lower flange is located at the lower section of cylinder, protruding portion is provided on the end face towards cylinder of lower flange, and
Protruding portion has the through-hole passed through for shaft.
Further, protruding portion is round boss, and the outer circle axis of round boss and the outer circle axis coaxle of lower flange are set
It sets, and through-hole is arranged on round boss.
Further, through-hole eccentric setting on round boss, and the outer circle axis of the axis of through-hole and round boss it
Between distance be eccentric distance e.
Further, pump assembly further includes：Piston bush is pivotally disposed in cylinder, and piston bush has for shaft
The via passed through, and protruding portion is stretched to by via in piston bush；Piston is slidably arranged in piston bush to form capacity
Chamber has preset distance along the axis direction of shaft between protruding portion and piston.
Further, piston bush includes ontology and the undergauge section being connect with ontology, undergauge section be located at ontology and lower flange it
Between, pump assembly further includes：Limiting plate, limiting plate are located at the top of lower flange and are set in outside undergauge section, limiting plate and ontology
Counter stopper, to be limited to piston bush.
Further, coordinate with limiting plate after there is limiting plate center through hole, undergauge section to stretch into center through hole, and undergauge
There is predetermined gap A, and predetermined gap A is more than or equal to 0.5mm between section and the hole wall of center through hole.
Further, the roughness Ra value of the hole wall of via is less than 0.5mm.
Further, shaft includes long shaft part, sliding section and short axle section connected in sequence, and sliding section is located in piston bush,
Short axle section is threaded through in through-hole.
Further, the side wall of cylinder further includes with gas vent, pump assembly：Exhaust valve component, exhaust valve component are set
The position set on the outer surface of cylinder and with gas vent is corresponding.
According to another aspect of the present invention, a kind of fluid machinery, including above-mentioned pump assembly are provided.
According to another aspect of the present invention, a kind of heat transmission equipment, including above-mentioned fluid machinery are provided.
It applies the technical scheme of the present invention, pump assembly includes shaft, cylinder and lower flange.Wherein, shaft passes through cylinder.
Lower flange is located at the lower section of cylinder, protruding portion is provided on the end face towards cylinder of lower flange, and protruding portion has for shaft
The through-hole passed through.In this way, shaft passes through cylinder and part shaft to pass through the protruding portion on lower flange, the part shaft and protruding portion
Cooperation reduces structural span of the shaft in pump assembly, prevents the part shaft from deforming upon, and then prevents from sending out due to shaft
Stress concentration phenomenon caused by raw deformation between shaft and lower flange, avoids shaft from structural wear occur with lower flange.
In pump assembly operational process, the protruding portion of shaft and lower flange coordinates, and then prevents shaft from deforming, and keeps away
Exempt from the contact stress caused by shaft deformation between shaft and lower flange to increase, and then prevents shaft and lower flange from tying
Structure is worn, and extends the service life of pump assembly, promotes the working performance and functional reliability of pump assembly, reduces energy damage
Consumption.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the sectional view after pump assembly removal upper flange in the prior art；
Fig. 2 shows the sectional views of the embodiment of pump assembly according to the present invention；
Fig. 3 shows the decomposition texture schematic diagram of the pump assembly in Fig. 2；
Fig. 4 shows the sectional view after the removal upper flange of the pump assembly in Fig. 2；
Fig. 5 shows the dimensional structure diagram of the lower flange of the pump assembly in Fig. 3；
Fig. 6 shows the vertical view of the lower flange in Fig. 5；
Fig. 7 shows the sectional view of the lower flange in Fig. 5；
Fig. 8 shows the dimensional structure diagram of the shaft of the pump assembly in Fig. 3；
Fig. 9 shows the dimensional structure diagram of the piston bush of the pump assembly in Fig. 3；
Figure 10 shows the dimensional structure diagram of the limiting plate of the pump assembly in Fig. 3；And
Figure 11 shows the fundamental diagram of the pump assembly in Fig. 2.
Wherein, above-mentioned attached drawing includes the following drawings label：
10 ', shaft, 11 ', short axle section；20 ', cylinder；30 ', lower flange；40 ', limiting plate；10, shaft；11, long shaft part；
12, section is slid；13, short axle section；20, cylinder；21, gas vent；30, lower flange；31, protruding portion；311, through-hole；40, piston bush；
41, via；42, ontology；43, undergauge section；50, piston；60, limiting plate；61, center through hole；70, exhaust valve component；80, upper method
It is blue.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used is typically directed to attached drawing as " upper and lower "
Shown in for direction, or on vertical, vertical or gravity direction；Similarly, it for ease of understanding and retouches
It states, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the inside and outside of the profile relative to each component itself,
But the above-mentioned noun of locality is not intended to restrict the invention.
Shaft in order to solve pump assembly in the prior art easily deforms upon, influences asking for pump assembly working performance
Topic, this application provides a kind of pump assembly, fluid machinery and heat transmission equipments.
As shown in Figures 2 to 4, pump assembly includes shaft 10, cylinder 20 and lower flange 30.Wherein, shaft 10 passes through gas
Cylinder 20.Lower flange 30 is located at the lower section of cylinder 20, lower flange 30 towards being provided with protruding portion 31 on the end face of cylinder 20, and it is prominent
Going out portion 31 has the through-hole 311 passed through for shaft 10.
Using the technical solution of the present embodiment, it is prominent on lower flange 30 that shaft 10 passes through cylinder 20 and part shaft 10 to pass through
Go out portion 31, which coordinates with protruding portion 31, reduces structural span of the shaft 10 in pump assembly, prevents the part
Shaft 10 deforms upon, and then prevents the stress concentration caused by being deformed upon due to shaft 10 between shaft 10 and lower flange 30
Phenomenon avoids shaft 10 from structural wear occur with lower flange 30.
In pump assembly operational process, shaft 10 and the protruding portion 31 of lower flange 30 coordinate, and then prevent shaft 10 from sending out
Change shape, avoids the contact stress caused by 10 deformation of shaft between shaft 10 and lower flange 30 from increasing, and then anti-rotation stop
Axis 10 and the abrasion of 30 recurring structure of lower flange, extend the service life of pump assembly, promote the working performance and work of pump assembly
Make reliability, reduces energy loss.
As shown in Figures 2 to 4, protruding portion 31 is round boss, the outer circle of the outer circle axis and lower flange 30 of round boss
Axis coaxle is arranged, and through-hole 311 is arranged on round boss.Specifically, protruding portion 31 stretches into cylinder 20, and shaft 10 passes through
It is pierced by from lower flange 30 after cylinder 20 and protruding portion 31.The protruding portion 31 of round boss shape makes the dress of lower flange 30 and cylinder 20
With being more prone to, conveniently, and the processing of protruding portion 31 is more prone to, is easy, reducing the labor intensity of staff, shorten
Processing takes, and then reduces the processing cost of pump assembly.
As shown in Figures 5 to 7, the eccentric setting on round boss of through-hole 311, and the axis and round boss of through-hole 311
The distance between outer circle axis be eccentric distance e.Wherein, cylinder 20 is coaxially disposed with the lower flange 30.Specifically, shaft 10
The protruding portion 31 on lower flange 30 is passed through by through-hole 311, ensures that shaft 10 can rotate in cylinder 20 and lower flange 30, with
Realize air-breathing, compression and the exhaust event of cylinder 20.Shaft 10 and round boss eccentric setting, to ensure the bias of pump assembly
Away from ensureing the operation stability of pump assembly for e to realize the normal operation of pump assembly.
The axle center in the center of circle and axis hole that the eccentricity of middle pump body component is made of flange screw hole compared with prior art
Distance determines to compare, in the present embodiment, the axis that the eccentricity of pump assembly passes through the outer circle axis and through-hole 311 of round boss
Line determines, simple and reliable.
In the present embodiment, the eccentric distance e for determining pump assembly is set by above structure so that the control of eccentric distance e
Mode is more prone to ensure, simple and reliable.
As shown in Figures 2 to 4, pump assembly further includes piston bush 40 and piston 50.Wherein, piston bush 40 is pivotly set
It sets in cylinder 20, piston bush 40 has the via 41 passed through for shaft 10, and protruding portion 31 stretches to piston by via 41
In set 40.Piston 50 is slidably arranged in piston bush 40 to form capacity chamber, along the axis direction of shaft 10, protruding portion 31 with
There is preset distance between piston 50.In this way, during operation, above-mentioned preset distance energy is arranged in piston bush 40 in piston 50
It enough prevents recurring structure between piston 50 and protruding portion 31 from interfering, and then improves the structural reliability of pump assembly, ensure the pump housing
Component being capable of normal operation.The structure of above structure is simple, is easily worked.
As shown in figure 9, piston bush 40 is located at ontology including ontology 42 and the undergauge section 43 being connect with ontology 42, undergauge section 43
Between 42 and lower flange 30, pump assembly further includes limiting plate 60.Wherein, limiting plate 60 is located at the top of lower flange 30 and is arranged
Outside undergauge section 43, limiting plate 60 and 42 counter stopper of ontology, to be limited to piston bush 40.Specifically, 43 court of undergauge section
Extend to lower flange 30, and is embedded in limiting plate 60, ontology 42 and 60 counter stopper of limiting plate of piston bush 40, to prevent from living
Plug sleeve 40 is pierced by out of cylinder 20.The structure of above structure is simple, is easily worked, realizes.
Specifically, undergauge section 43 is cyclic structure, and ontology 42 has a via 41 being axially arranged along it, and undergauge section 43 with
Via 41 is coaxially disposed, ontology 42 and 60 counter stopper of limiting plate, and undergauge section 43 is towards the end face of lower flange 30 and lower flange 30
Clearance fit.In this way, above-mentioned assembly method can avoid generating large area friction, reduce between piston bush 40 and lower flange 30
Friction, reduces frictional power loss, improves the working efficiency of pump assembly.
Specifically, it is carried out with the rotation of piston 50 under the driving of shaft 10 after piston bush 40 is arranged in cylinder 20
Rotation.Due to piston 50 on the axis direction of shaft 10 with 60 counter stopper of limiting plate and with 30 clearance fit of lower flange, from
And the contact area of piston bush 40 and limiting plate 60 or lower flange 30 is effectively reduced, it thereby reduces piston bush 40 and is rotating
The abrasion that generates in the process reduces friction power loss loss, improves the working efficiency of pump assembly.
In the present embodiment, there is the pilot hole for radially penetrating through setting, piston 50, which is slidably arranged in, leads in ontology 42
Into hole to carry out linear reciprocating motion.Since piston 50 is slidably arranged in pilot hole, thus when piston 50 is in pilot hole
When side-to-side movement, the volume of capacity chamber can be made constantly to change, to ensure air-breathing, the exhaust stability of pump assembly.
In the present embodiment, shaft 10 and 30 eccentric setting of lower flange, cylinder 20 and 10 eccentric setting of shaft and eccentricity
It is fixed as e.Cylinder 20, limiting plate 60 and lower flange 30 are arranged concentrically.In this way, the cylinder 20 of aforesaid way installation can ensure gas
Cylinder 20 and the eccentricity of shaft 10 are fixed, so that piston bush 40 and piston 50 have the characteristics that kinetic stability is good, are carried
The working performance of high pump assembly, job stability.
Specifically, cross slides are formed between piston 50, piston bush 40, cylinder 20 and shaft 10, piston 50 is along vertical
The directly sliding in piston bush 40 in the direction of the axis of shaft 10, so that piston 50 slides in piston bush 40 to change capacity
The volume of chamber, then cylinder 20 carry out air-breathing, compression and exhaust event.Above structure makes piston 50 and piston bush 40 in cylinder 20
Interior movement more stablizes, is continuous, and the vibration of pump assembly has been effectively relieved, and ensures that the volume variation of capacity chamber has rule
It restrains, reduce clearance volume, to improve the operation stability of pump assembly, and then improve the reliable operation of pump assembly
Property.
As shown in figure 3, there is piston 50 slip hole axially through setting along shaft 10, shaft 10 to pass through slip hole,
Piston 50 is under the driving of shaft 10 with the rotation of shaft 10 and simultaneously along the axis direction perpendicular to shaft 10 in piston bush 40
It inside reciprocatingly slides, since piston 50 moves in a straight line rather than rotary reciprocating motion relative to shaft 10, thus effectively reduces partially
Heart quality reduces shaft 10 and lateral force that piston 50 is subject to, to reduce the abrasion of piston 50, improve piston 50
Sealing performance.Meanwhile ensure that the operation stability and reliability of pump assembly, and reduce fluid machinery vibration risk,
Simplify the structure of fluid machinery.
Piston 50 in the present invention is cylindrical.Preferably, piston 50 is cylinder or non-cylindrical.
As shown in figure 3, pump assembly further includes the upper flange 80 for being located at 20 top of cylinder.Wherein, cylinder 20 is located at upper method
Between orchid 80 and lower flange 30, and upper and lower flange is fixedly connected by fastener with cylinder 20.In this way, above-mentioned mounting means makes
The structure for obtaining pump assembly is compacter, prevents the gases did escape in cylinder 20, improves the working efficiency of pump assembly, carry
Rise the working performance of pump assembly.
As shown in Fig. 3, Fig. 4 and Figure 10, after there is limiting plate 60 center through hole 61, undergauge section 43 to stretch into center through hole 61
Coordinate with limiting plate 60, and there is predetermined gap A between undergauge section 43 and the hole wall of center through hole 61, and predetermined gap A is more than
Equal to 0.5mm.Specifically, undergauge section 43 stretches in center through hole 61, and limiting plate 60 can be protected with the outer surface of cylinder 20
Maintain an equal level neat so that the appearance of pump assembly is more beautiful, and manufacture easy to process.It is logical with undergauge section 43 in the prior art and center
Gap is smaller between the hole wall in hole 61 compares, in the present embodiment between the center through hole 61 and undergauge section 43 of limiting plate 60 exist compared with
Wide arc gap prevents limiting plate 60 from being contacted with piston bush 40, avoids generating rubbing action therebetween and influencing making for pump assembly
Use the service life.
As shown in figure 9, the roughness Ra value of the hole wall of via 41 is less than 0.5mm.In this way, above-mentioned setting can ensure via
There are certain roughness in 41 so that constitutes friction pair between the hole wall of via 41 and the protruding portion 31 of lower flange 30, ensures to live
Plug sleeve 40 being capable of the rotation in cylinder 20.
As shown in Figure 4 and Figure 8, shaft 10 includes long shaft part 11 connected in sequence, sliding section 12 and short axle section 13, slides section
12 are located in piston bush 40, and short axle section 13 is threaded through in through-hole 311.In this way, sliding section 12 is connected with piston 50, section is slid
12 are located in through-hole 311, and then reduce the span of the short axle section 13 of shaft 10, shorten the length of short axle section 13, Jin Erfang
Only short axle section 13 deforms upon, and avoids the stable structure for both stress concentration occurring and influences between short axle section 13 and protruding portion 31
Property, to improve the operational reliability of pump assembly, improve the working efficiency of pump assembly.
Compared with the length H1 of prior art short-and-medium axle section 13, the length H2 of the short axle section 13 in the present embodiment is shorter, has
Conducive to saving production cost.In this way, above-mentioned be provided with conducive to the deformation of short axle section 13 (shaft 10) is reduced, prevent from reducing short axle section
The stress concentration of 13 (shafts 10) and lower flange 30, and then improve the abrasion condition of 13 (shaft 10) and lower flange 30 of short axle section.
As shown in figure 3, the side wall of cylinder 20 has gas vent 21, pump assembly further includes exhaust valve component 70.Wherein, it arranges
Air-valve assembly 70 is arranged on the outer surface of cylinder 20 and corresponding with the position of gas vent 21.In this way, exhaust valve component 70
Setting can be effectively prevented from capacity intracavity gas and largely leak, and ensure that the compression efficiency of capacity chamber.Specifically, it is vented
Valve module 70 includes exhaust valve plate and valve block baffle, and exhaust valve plate blocks gas vent 21, and valve block baffle is stacked on exhaust valve plate,
Gas pressure only at gas vent 21 is more than the active force of valve block baffle, and the gas in cylinder 20 can be discharged, improve
The functional reliability of pump assembly.
In the present embodiment, the assembling process of pump assembly is as follows：Piston 50 is mounted in the pilot hole of piston bush 40, contracting
Diameter section 43 is mounted on limiting plate 60, and limiting plate 60 is fixedly connected with lower flange 30, while cylinder 20 and the coaxial peace of piston bush 40
Dress, lower flange 30 are fixedly connected with cylinder 20, and the sliding mating surface of shaft 10 is parallel with a pair of the slip hole of piston 50
Surface engagement is installed, the long shaft part 11 of 80 fixed rotating shaft 10 of upper flange, while upper flange 80 is fixedly connected with cylinder, to complete
The assembly of pump assembly.Wherein the sliding section 12 of shaft 10 is located in cylinder 20, and short axle section 13 is located at the protruding portion of lower flange 30
In 31.
As shown in figure 11, pump assembly is run using cross slides principle, wherein piston 50 is used as sliding block, shaft
10 sliding mating surface is as first connecting rod l1, the pilot hole of piston bush 40 is as second connecting rod l2.Pilot hole and sliding mating surface
It is mutually perpendicular to, piston 50 can only be moved back and forth relative to pilot hole, and piston 50 can only be moved back and forth relative to sliding mating surface.It is living
Plug 50 is reduced to after barycenter it can be found that its running orbit is circular motion, which is the axle center O with cylinder 202With shaft 10
Axle center O1Line be diameter circle.
As second connecting rod l2When circling, sliding block can be along second connecting rod l2It moves back and forth；Meanwhile sliding block can edge
First connecting rod l1It moves back and forth.First connecting rod l1With second connecting rod l2Remain vertical so that sliding block is along first connecting rod l1Back and forth
The direction of motion is with sliding block along second connecting rod l2Vibration-direction is mutually perpendicular to.First connecting rod l1With second connecting rod l2And piston 50
Relative motion relation, formed cross slides principle.
Present invention also provides a kind of fluid machinery (not shown), including above-mentioned pump assembly.Optionally, fluid machinery
For compressor.
In the present embodiment, the operation process of compressor is as follows：Motor-driven rotatable shaft 10 rotates, and shaft 10 drives piston 50
Rotation, piston 50 drive piston bush 40 to rotate.In above-mentioned motion process, shaft 10 is rotated around the center of through-hole 311, piston bush
40 rotate around the center of the round boss of lower flange 30, and piston 50 only moves back and forth relative to piston bush 40, piston 50 relative to
Shaft 10 moves back and forth, and two reciprocating motions are mutually perpendicular to.With the reciprocating motion between piston 50 and piston bush 40, piston 50
Head cambered surface, the inner surface of cylinder 20, two cavity volumes being formed between the pilot hole of piston bush 40 gradually change, complete
Air-breathing, compression, exhaust process.
Present invention also provides a kind of heat transmission equipment (not shown), including above-mentioned fluid machinery.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
Shaft passes through cylinder and part shaft that the protruding portion on lower flange, the part shaft is passed through to coordinate with protruding portion, subtract
Structural span of the small shaft in pump assembly prevents the part shaft from deforming upon, and then prevents from deforming upon due to shaft
Stress concentration phenomenon between caused shaft and lower flange avoids shaft from structural wear occur with lower flange.
In pump assembly operational process, the protruding portion of shaft and lower flange coordinates, and then prevents shaft from deforming, and keeps away
Exempt from the contact stress caused by shaft deformation between shaft and lower flange to increase, and then prevents shaft and lower flange from tying
Structure is worn, and extends the service life of pump assembly, promotes the working performance and functional reliability of pump assembly, reduces energy damage
Consumption.
Obviously, above-mentioned described embodiment only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiment should all belong to the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of pump assembly, which is characterized in that including：
Shaft (10)；
Cylinder (20), the shaft (10) pass through the cylinder (20)；
Lower flange (30) is located at the lower section of the cylinder (20), the end face of the direction cylinder (20) of the lower flange (30)
On be provided with protruding portion (31), and the protruding portion (31) has the through-hole (311) passed through for the shaft (10).
2. pump assembly according to claim 1, which is characterized in that the protruding portion (31) is round boss, the circle
The outer circle axis of shape boss is arranged with the outer circle axis coaxle of the lower flange (30), and the through-hole (311) is arranged described
On round boss.
3. pump assembly according to claim 2, which is characterized in that the through-hole (311) is inclined on the round boss
The heart is arranged, and the distance between the axis of the through-hole (311) and the outer circle axis of the round boss are eccentric distance e.
4. pump assembly according to claim 1, which is characterized in that the pump assembly further includes：
Piston bush (40) is pivotally disposed in the cylinder (20), and the piston bush (40) has for the shaft (10)
The via (41) passed through, and the protruding portion (31) is stretched to by the via (41) in the piston bush (40)；
Piston (50) is slidably arranged in the piston bush (40) to form capacity chamber, the axis side along the shaft (10)
To with preset distance between the protruding portion (31) and the piston (50).
5. pump assembly according to claim 4, which is characterized in that the piston bush (40) include ontology (42) and with institute
State the undergauge section (43) of ontology (42) connection, the undergauge section (43) be located at the ontology (42) and the lower flange (30) it
Between, the pump assembly further includes：
Limiting plate (60), the limiting plate (60) are located at the top of the lower flange (30) and are set in the undergauge section (43)
Outside, the limiting plate (60) and the ontology (42) counter stopper, to be limited to the piston bush (40).
6. pump assembly according to claim 5, which is characterized in that the limiting plate (60) has center through hole (61),
The undergauge section (43) coordinates after stretching into the center through hole (61) with the limiting plate (60), and the undergauge section (43) with
There is predetermined gap A, and the predetermined gap A is more than or equal to 0.5mm between the hole wall of the center through hole (61).
7. pump assembly according to claim 4, which is characterized in that the roughness Ra value of the hole wall of the via (41) is small
In 0.5mm.
8. pump assembly according to claim 4, which is characterized in that the shaft (10) includes long shaft part connected in sequence
(11), sliding section (12) and short axle section (13), the sliding section (12) are located in the piston bush (40), the short axle section (13)
It is threaded through in the through-hole (311).
9. pump assembly according to any one of claim 1 to 8, which is characterized in that the side wall of the cylinder (20) has
There are the gas vent (21), the pump assembly to further include：
Exhaust valve component (70), the exhaust valve component (70) be arranged on the outer surface of the cylinder (20) and with the exhaust
The position in hole (21) is corresponding.
10. a kind of fluid machinery, which is characterized in that including the pump assembly described in any one of claim 1 to 9.
11. a kind of heat transmission equipment, which is characterized in that including fluid machinery according to any one of claims 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791306.1A CN108799103B (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machinery and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791306.1A CN108799103B (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machinery and heat exchange equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108799103A true CN108799103A (en) | 2018-11-13 |
| CN108799103B CN108799103B (en) | 2023-10-03 |
Family
ID=64076945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810791306.1A Active CN108799103B (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machinery and heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108799103B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488592A (en) * | 2018-12-17 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
| CN109595157A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
| WO2020125108A1 (en) * | 2018-12-18 | 2020-06-25 | 珠海格力电器股份有限公司 | Piston limiting structure, compressor and heat exchange apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132173A (en) * | 1997-10-23 | 1999-05-18 | Toshiba Corp | Fluid compressor |
| JPH11257268A (en) * | 1998-03-10 | 1999-09-21 | Toshiba Corp | Helical blade type compressor |
| JP2000136783A (en) * | 1998-11-02 | 2000-05-16 | Toshiba Corp | Fluid machine |
| CN103147987A (en) * | 2013-01-29 | 2013-06-12 | 珠海格力电器股份有限公司 | Double-cylinder rotating compressor and eccentric assembling method thereof |
| CN106704182A (en) * | 2015-08-07 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machine, heat exchange equipment and running method of fluid machine |
| CN106704183A (en) * | 2015-08-07 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machine, heat exchange apparatus and running method of fluid machine |
| CN208595057U (en) * | 2018-07-18 | 2019-03-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, fluid machinery and heat exchange equipment |
-
2018
- 2018-07-18 CN CN201810791306.1A patent/CN108799103B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132173A (en) * | 1997-10-23 | 1999-05-18 | Toshiba Corp | Fluid compressor |
| JPH11257268A (en) * | 1998-03-10 | 1999-09-21 | Toshiba Corp | Helical blade type compressor |
| JP2000136783A (en) * | 1998-11-02 | 2000-05-16 | Toshiba Corp | Fluid machine |
| CN103147987A (en) * | 2013-01-29 | 2013-06-12 | 珠海格力电器股份有限公司 | Double-cylinder rotating compressor and eccentric assembling method thereof |
| CN106704182A (en) * | 2015-08-07 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machine, heat exchange equipment and running method of fluid machine |
| CN106704183A (en) * | 2015-08-07 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machine, heat exchange apparatus and running method of fluid machine |
| CN208595057U (en) * | 2018-07-18 | 2019-03-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, fluid machinery and heat exchange equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488592A (en) * | 2018-12-17 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
| CN109595157A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
| WO2020125108A1 (en) * | 2018-12-18 | 2020-06-25 | 珠海格力电器股份有限公司 | Piston limiting structure, compressor and heat exchange apparatus |
| US11976643B2 (en) | 2018-12-18 | 2024-05-07 | Gree Electric Appliances, Inc. Of Zhuhai | Piston limiting structure, compressor, and heat exchange apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108799103B (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204877938U (en) | Fluid machinery and indirect heating equipment | |
| CN108799103A (en) | Pump assembly, fluid machinery and heat transmission equipment | |
| US10626858B2 (en) | Fluid machinery, heat exchange equipment, and operating method for fluid machinery | |
| CN211397889U (en) | Pump body assembly, fluid machine and heat exchange equipment | |
| CN107152392B (en) | Pump body assembly, fluid machine and heat exchange equipment | |
| CN105570128A (en) | Compressor pump structure and compressor | |
| CN105604937A (en) | Fluid machine and heat exchange device | |
| CN106015008B (en) | It is a kind of to turn the cylinder piston compressor pump and the compressor using it | |
| CN108799104A (en) | Pump assembly, fluid machinery and heat transmission equipment | |
| CN205064265U (en) | Fluid machinery and indirect heating equipment | |
| CN111022321A (en) | Pump body assembly, fluid machine and heat exchange equipment | |
| CN204877942U (en) | Compressor and indirect heating equipment | |
| CN108799108A (en) | Pump assembly, fluid machinery and heat transmission equipment | |
| CN108799105A (en) | Pump assembly, fluid machinery and heat transmission equipment | |
| CN208595057U (en) | Pump assembly, fluid machinery and heat exchange equipment | |
| CN108869278A (en) | Pump assembly, fluid machinery and heat exchange equipment | |
| US10941771B2 (en) | Fluid machinery, heat exchange equipment, and operating method for fluid machinery | |
| CN205533217U (en) | Compressor pump body structure and compressor | |
| WO2016208429A1 (en) | Piston reciprocating mechanism, pump, compressor, and vacuum pump | |
| CN217002174U (en) | Plunger structure of axial hydraulic pump and axial hydraulic pump comprising same | |
| CN108799106A (en) | Pump assembly, fluid machinery and heat transmission equipment | |
| CN208474108U (en) | Pump assembly, fluid machinery and heat exchange equipment | |
| CN211397890U (en) | Pump body assembly, fluid machine and heat exchange equipment | |
| CN208474105U (en) | Pump assembly, fluid machinery and heat exchange equipment | |
| CN208595059U (en) | Pump assembly, fluid machinery and heat exchange equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |